OK, let's crack this. We're given 375 and our task is to multiply it by 7. Essentially, we'll be adding 375 to itself 7 times.
Step 1: 0 + 375 = 375
Step 2: 375 + 375 = 750
Step 3: 750 + 375 = 1125
Step 4: 1125 + 375 = 1500
Step 5: 1500 + 375 = 1875
Step 6: 1875 + 375 = 2250
Step 7: 2250 + 375 = 2625

So, 375*7 = 2625